How many people are actually watching tv?

Have you ever wondered how many other people are watching the same shows as you or what other people might like better. Heres a list of the most popular shows being watched on Monday in millions

1.The Big Bang Theory (CBS)5.2
2.Two and a Half Men (CBS)4.6
3.Dancing With the Stars (ABC)4
4.House (FOX)3.6
5.How I Met Your Mother (CBS)3.3
6.CSI: Miami (CBS)3.3
7.Rules of Engagement (CBS)3.2
8.24 (FOX)2.7
9.Castle (ABC)2.6
10.Chuck (NBC)1.9